ofxBeatClock

openFrameworks add-on to run a DAW-Styled BPM Beat-Clock.
Internal Clock with Tap Tempo, External MIDI Sync and Ableton Link modes.
Receives a callback notification when each beat happens.

Screencast

Usage

ofApp.h

#include "ofxBeatClock.h"

ofxBeatClock beatClock;

ofEventListener listener;
void Changed_Tick();

ofApp.cpp

void ofApp::setup()
{
  beatClock.setup();
  listener = beatClock.BeatTick.newListener([&](bool&) {this->Changed_Tick(); });
}
void ofApp::draw()
{
  beatClock.draw();
}
void ofApp::Changed_Tick() // -> Callback to receive BeatTicks
{
  ofLogNotice() << "Beat! #" << beatClock.getBeat();
}

Features

• NEW FEATURE:
  Ableton LINK sync engine (Master/Slave). [WIP: Maybe some protocol feature could be missing.. but working]
• Internal Clock based in a threaded timer from ofxDawMetro from @castovoid.
  You can uncomment #define USE_AUDIO_BUFFER_TIMER_MODE on ofxBeatClock.h to enable BETA alternative timer. [WIP]
• Tap Tempo Engine.
• External Source as Input MIDI Clock (Slave) using ofxMidi from @danomatika. Easy to Sync to Ableton Live or any sequencer app with Midi Clock.
• Metronome Sound Ticks.
• ImGui based GUI.
• Auto Save/Load of all settings.

Requeriments

• ofxMidi
• ofxImGuiSurfing
• ofxImGui. / Fork from @Daandelange.
• ofxSurfingHelpers
• ofxAbletonLink. / Optional. Can be disabled.
• ofxWindowApp. / Not required. For examples only.

Already included into OF_ADD-ON/libs. No need to add manually:

• ofxDawMetro

Tested Systems

• Windows 10 / VS 2022 / oF 0.12+

Author

An add-on by @moebiusSurfing
( ManuMolina ). 2020-2022.

Thanks to the developers of the included core add-ons! @danomatika, @2bb and @castovoid.

License

MIT License.

TODO

• Improve on-the-fly pushing sync/tweaking BPM smoothly.
• Test/improve all Ableton Link features like Ableton in slave mode or multiple peers. [?]
• Finish the improved Audio Buffer-based clock to allow more precision.
  This seems important when moving/hiding the Window. Sometimes the sync is lost. [?]

FEEL FREE TO ADD MODIFICATIONS OR FEATURES AND TO SEND ME PULL REQUESTS OR ISSUES!